A vertical overlay welding equipment for processing large-diameter pipe fittings

Abstract

This invention relates to the field of automatic welding technology and proposes a vertical surfacing welding device for processing large-diameter pipe fittings. The device includes a feeding base, a detection ring, a position adjustment mechanism, and a position detection mechanism. The detection ring is circular. The position adjustment mechanism is mounted on the feeding base and is used to adjust and align the pipe fitting. The position detection mechanism is used to detect the position of the pipe fitting. The position adjustment mechanism includes an adjustment slot and a drive cylinder. The output end of the drive cylinder passes through the adjustment slot. After the pipe fitting is placed on the placement table, the position detection mechanism checks whether the position of the pipe fitting is accurate and how much it deviates, and then the position adjustment mechanism makes the necessary adjustments. Welding is then performed using a welding gun. This technical solution solves the problem in existing technologies where aligning large-diameter pipe fittings with the feeding device below the vertical surfacing welding machine can take a considerable amount of time.

Description

Technical Field

[0001] This invention relates to the field of automatic welding technology, specifically to a vertical surfacing welding device for processing large-diameter pipe fittings. Background Technology

[0002] When manufacturing large-diameter pipes, steel plates or strips need to be cut, bent, and butted together. Then, the weld seams of multiple steel plates are aligned and placed on a welding machine. The multiple steel plates are connected to form a pipe through welding. After the pipe is basically formed, it needs to be overlaid with weld on the inside. Overlay welding can form a corrosion-resistant alloy layer on the surface of the pipe, thereby improving the corrosion resistance of the pipe and extending its service life. The alloy layer can also improve the high temperature resistance and impact resistance of the pipe. At the same time, overlay welding on the inside of the pipe can reinforce the gaps in the pipe, enhance the sealing of the pipe, and repair the gaps on the pipe. Vertical overlay welding machines are often used when overlaying the inside of large-diameter pipes.

[0003] The vertical cladding machine is equipped with a liftable support arm, on which a welding gun is connected. Below the welding gun is a feeding device. The pipe is placed in the center of the feeding device, and the welding gun extends into the inside of the pipe to contact the inner wall for cladding. The feeding device drives the pipe to rotate, causing the welding gun to rotate along the inside of the pipe. In order to ensure accurate cladding inside the pipe, the pipe must be placed in the exact center of the feeding device. However, due to the large size and heavy weight of the pipe, it may take a long time to align the pipe with the center of the feeding device. This process is labor-intensive and has limited accuracy. Summary of the Invention

[0004] This invention proposes a vertical surfacing welding equipment for processing large-diameter pipe fittings, which solves the problem in the prior art that it may take a long time to align the pipe fittings with the feeding device when placing them on the feeding device below the vertical surfacing welding machine.

[0005] The technical solution of the present invention is as follows:

[0006] A vertical surfacing welding device for processing large-diameter pipe fittings includes a vertical rail, a welding support arm slidably connected to the vertical rail, a welding gun connected to one end of the welding support arm, a feeding seat, a detection ring, a position adjustment mechanism, and a position detection mechanism. The feeding seat is located below the welding gun, the detection ring is fixedly connected to the feeding seat and is circular, the position adjustment mechanism is located on the feeding seat and at the center of the detection ring, the pipe fitting is placed on the position adjustment mechanism, the position adjustment mechanism is used to adjust and align the position of the pipe fitting, and the position detection mechanism is located on the detection ring and is used to detect the position of the pipe fitting. The position adjustment mechanism includes adjustment slots and drive cylinders. Multiple adjustment slots are provided and are formed on the detection ring. Multiple drive cylinders are provided and are fixedly connected to the feeding seat, the output end of each drive cylinder passing through the adjustment slot.

[0007] The position detection mechanism includes a motor, a gear ring, a sliding shaft, and detection bars. The motor is fixedly mounted on the feeding seat, and a gear is fixedly connected to the output end of the motor. The gear ring is rotatably connected to the detection ring and meshes with the gear. Multiple sliding shafts are provided and fixedly connected to the detection ring. The sliding shafts are located on the side of the gear ring closer to the position detection mechanism. Multiple detection bars are provided and rotatably connected to the gear ring. Each detection bar has a groove, and each groove is slidably connected to the sliding shaft.

[0008] The detection strip is arc-shaped, and the section of the detection strip located in the groove away from the toothed ring is stepped. A pressing rod is rotatably connected to the stepped end of the detection strip. A pressure sensor is fixedly connected between the pressing rod and the detection strip. A rubber sleeve is fitted on the sliding shaft and is rotatably connected to the sliding shaft. The rubber sleeve fits against the groove.

[0009] The position adjustment mechanism further includes a rotation component and an adjustment component. The rotation component is located in the center of the detection ring and is used to drive the pipe to rotate. The adjustment component is located in the detection ring and is used to control whether the position of the pipe can be adjusted.

[0010] The rotating assembly includes a second motor, a transmission shaft, a rotating platform, a lifting bushing, and a second drive cylinder. The second motor is fixedly mounted on the feeding seat. The transmission shaft is rotatably mounted on the feeding seat and is connected to the output end of the second motor. The rotating platform is slidably connected to the transmission shaft. The lifting bushing is rotatably connected to one end of the rotating platform near the transmission shaft. Multiple second drive cylinders are provided and fixedly mounted on the feeding seat. The output end of the second drive cylinder is fixedly connected to the lifting bushing.

[0011] The adjustment assembly includes a support wheel 1, a gear 2, a placement platform, a gear ring 2, and a drive cylinder 3. Two support wheels 1 are provided, rotatably connected to the feeding seat. The support wheels 1 are located at the center of the detection ring and are arranged opposite each other. Two gears 2 are provided, rotatably connected to the feeding seat and staggered with the two support wheels 1. Each gear 2 is rotatably connected to a support wheel 2. The placement platform is placed on the support wheels 1 and 2, and the pipe is placed on the placement platform. The gear ring 2 is rotatably mounted on the feeding seat and meshes with the two gears 2. The gears 2 are sleeved outside the transmission shaft and the drive cylinder 2. The drive cylinder 3 is rotatably connected to the feeding seat and located at the center of the detection ring. The output end of the drive cylinder 3 is rotatably connected to the gear ring 2.

[0012] The adjustment slots are provided in multiple ways, and the multiple adjustment slots are respectively arranged opposite each other. The multiple adjustment slots are respectively opened on the side of the detection ring near the second support wheel.

[0013] The placement platform is located on the side of the detection strip near the feeding seat, and the rotating platform can contact the placement platform.

[0014] The working principle and beneficial effects of this invention are as follows:

[0015] 1. In this invention, by setting an extrusion rod and a pressure sensor, the extrusion rod rotates slightly when it contacts the pipe, which squeezes the pressure sensor. The pressure sensor detects the pressure and then determines that the extrusion rod is in contact with the pipe. By measuring the order and time of pressure detection by the pressure sensor at each position, the direction of pipe offset can be determined.

[0016] 2. In this invention, by setting support wheel one and support wheel two, after the position detection mechanism detects the pipe offset, the rotating table rotates and drives the pipe to rotate, so that the direction of the pipe offset is parallel to the direction of the line connecting the two support wheels two. At this time, the output end of the drive cylinder three shortens and can pull the gear ring two to rotate. The gear two drives the support wheel two to rotate, so that the support wheel two is parallel to the support wheel one. At this time, the output end of the drive cylinder one can push the placement table to slide and perform multiple detections. When the pipe position is aligned, the output end of the drive cylinder two extends and pushes the gear ring two to rotate, so that the support wheel two rotates 90 degrees, and the placement table can rotate again. With the support of support wheel one and support wheel two, the placement table can rotate, and with the 90-degree rotation of support wheel two, the placement plate can be easily slidably adjusted in position.

[0017] 3. In this invention, by setting a position adjustment mechanism, the rotation of the second support wheel is used to control the placement platform to maintain a rotating state or a parallel sliding state. By setting a position detection mechanism, the position of the pipe at multiple angles can be detected at the same time, and the direction of the pipe can be determined. The pipe can be adjusted by moving it in one direction. Attached Figure Description

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the overall structure of the present invention from another perspective;

[0021] Figure 3 This is a schematic diagram of the structure in which the position detection mechanism and the position adjustment mechanism cooperate in this invention;

[0022] Figure 4 This is a partial structural diagram of the detection strip in this invention;

[0023] Figure 5 This is a schematic diagram of the internal structure of the detection ring in this invention;

[0024] Figure 6 This is a schematic diagram of the internal cross-sectional structure of the feeding seat in this invention;

[0025] Figure 7 This is a schematic diagram of the internal cross-sectional structure of the detection ring in this invention.

[0026] In the diagram: 1. Vertical rail; 2. Welding support arm; 3. Welding gun; 4. Feeding seat; 5. Detection ring; 6. Adjustment slot; 7. Drive cylinder one; 8. Motor one; 9. Gear ring one; 10. Sliding shaft; 11. Detection strip; 12. Slide groove; 13. Pressure sensor; 14. Rubber sleeve; 15. Motor two; 16. Transmission shaft; 17. Rotary table; 18. Lifting bushing; 19. Drive cylinder two; 20. Support wheel one; 21. Gear two; 22. Support wheel two; 23. Placement table; 24. Gear ring two; 25. Drive cylinder three; 26. Extrusion rod; 27. Gear one. Detailed Implementation

[0027] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0028] like Figures 1-7 As shown, this embodiment proposes a vertical surfacing welding device for processing large-diameter pipe fittings, including a vertical rail 1, a welding support arm 2 slidably connected to the vertical rail 1, a welding gun 3 connected to one end of the welding support arm 2, a feeding seat 4, a detection ring 5, a position adjustment mechanism, and a position detection mechanism. The feeding seat 4 is located below the welding gun 3, the detection ring 5 is fixedly connected to the feeding seat 4, and the detection ring 5 is circular. The position adjustment mechanism is located on the feeding seat 4 and is positioned in the center of the detection ring 5. The pipe fitting is placed on the position adjustment mechanism, which is used to adjust the position of the pipe fitting. The position is adjusted and aligned. A position detection mechanism is installed on the detection ring 5 to detect the position of the pipe fitting. The position adjustment mechanism includes adjustment slots 6 and drive cylinders 7. Multiple adjustment slots 6 are provided on the detection ring 5. Multiple drive cylinders 7 are fixedly connected to the feeding seat 4. The output end of the drive cylinder 7 passes through the adjustment slots 6. After the pipe fitting is placed on the placement table 23, the position detection mechanism checks whether the position of the pipe fitting is accurate and how much offset it is. Then, the position adjustment mechanism is used for adjustment. Welding is then performed using the welding gun 3.

[0029] like Figures 1-4As shown, the position detection mechanism includes a motor 8, a gear ring 9, a sliding shaft 10, and detection bars 11. The motor 8 is fixedly mounted on the feeding seat 4. A gear 27 is fixedly connected to the output end of the motor 8. The gear ring 9 is rotatably connected to the detection ring 5, and the gear ring 9 meshes with the gear 27. Multiple sliding shafts 10 are provided, and multiple sliding shafts 10 are fixedly connected to the detection ring 5. The sliding shafts 10 are located on the side of the gear ring 9 closest to the position detection mechanism. Multiple detection bars 11 are provided, and multiple detection bars 11 are rotatably connected to the gear ring 9. Each detection bar 11 has a groove 12, and each groove 12 is slidably connected to a sliding shaft 10. In this embodiment, five sliding shafts 10 and detection bars 11 are provided. When the output end of the motor 8 drives the gear 27 to rotate, the gear 27 drives the rack 10 to rotate. Figure 1 and Figure 3 A comparison shows that when the toothed ring 9 rotates, it pushes the detection strip 11 to slide on the sliding shaft 10.

[0030] like Figures 3-4 As shown, the detection strip 11 is arc-shaped, and the section of the detection strip 11 located in the slide groove 12 away from the toothed ring 9 is stepped. A pressure rod 26 is rotatably connected to the stepped end of the detection strip 11. A pressure sensor 13 is fixedly connected between the pressure rod 26 and the detection strip 11. A rubber sleeve 14 is fitted onto the sliding shaft 10, and the rubber sleeve 14 is rotatably connected to the sliding shaft 10. The rubber sleeve 14 fits against the slide groove 12. The stepped design of the detection strip 11 prevents adjacent detection strips 11 from contacting each other when they are close together. When the sliding shaft 10 and the rubber sleeve 14 slide on the slide groove 12, the rubber sleeve 14 rotates with the slide groove 12. Simultaneously, the rubber sleeve 14 provides a damping effect when sliding on the slide groove 12, thus affecting the detection strip 11. 1. Vibration reduction is achieved through the damping of the rubber strip, which makes the detection strip 11 more stable during rotation, reduces the shaking of the detection strip 11, and improves the detection accuracy. When the extrusion rod 26 contacts the pipe, the extrusion rod 26 rotates slightly, extruding the pressure sensor 13. The pressure sensor 13 detects the pressure and thus determines that the extrusion rod 26 is in contact with the pipe. By measuring the sequence and time of pressure detection by the pressure sensor 13 at each position, the direction of pipe offset can be determined. The pressure sensor 13 is a device or apparatus that can sense pressure signals and convert them into usable output electrical signals according to a certain rule. Other sensors on the detection strip 11 can also be used to detect contact with the pipe.

[0031] The position adjustment mechanism also includes a rotation component and an adjustment component. The rotation component is located in the center of the detection ring 5 and is used to drive the pipe to rotate. The adjustment component is located in the detection ring 5 and is used to control whether the position of the pipe can be adjusted.

[0032] like Figures 5-7As shown, the rotating assembly includes a second motor 15, a transmission shaft 16, a rotating table 17, a lifting bushing 18, and a second drive cylinder 19. The second motor 15 is fixedly mounted on the feeding seat 4. The transmission shaft 16 is rotatably mounted on the feeding seat 4 and is connected to the output end of the second motor 15. The rotating table 17 is slidably connected to the transmission shaft 16. The lifting bushing 18 is rotatably connected to the end of the rotating table 17 near the transmission shaft 16. Multiple second drive cylinders 19 are provided and fixedly mounted on the feeding seat 4. The output end of the second drive cylinder 19 is fixedly connected to the lifting bushing 18. A transmission belt is sleeved on the output end of the second motor 15 and the transmission shaft 16. The transmission belt passes through the detection ring 5. When the output end of the second drive cylinder 19 shortens, it pulls the lifting bushing 18 and the rotating table 17 down, separating the rotating table 17 from the placement table 23. When it is necessary to drive the placement table 23 and the pipe to rotate, the output end of the second drive cylinder 19 extends to push the rotating table 17 to fit against the placement table 23.

[0033] like Figures 5-7 As shown, the adjustment assembly includes support wheel 1 20, gear 21, support wheel 22, placement platform 23, gear ring 24, and drive cylinder 3 25. Two support wheels 1 20 are provided, rotatably connected to the feeding seat 4. The support wheels 1 20 are located in the center of the detection ring 5 and are arranged opposite each other. Two gears 21 are provided, rotatably connected to the feeding seat 4. The two gears 21 and the two support wheels 1 20 are arranged alternately. Each gear 21 is rotatably connected to a support wheel 22. The placement platform 23 is placed on the support wheels 1 20 and 22, and the pipe fitting is placed on the placement platform 23. The gear ring 24 is rotatably mounted on the feeding seat 4. Gear ring 24 meshes with two gears 21. Gears 21 are sleeved on the outside of drive shaft 16 and drive cylinder 29. Drive cylinder 3 25 is rotatably connected to the feeding seat 4 and is located in the center of detection ring 5. The output end of drive cylinder 3 25 is rotatably connected to gear ring 24. When the output end of drive cylinder 29 is in an extended state, the rotation direction of support wheel 1 20 and support wheel 2 22 is circular. The placement plate can rotate when placed on support wheel 1 20 and support wheel 2 22. When the position detection mechanism detects the pipe offset, the rotating table 17 rotates, causing the pipe to rotate, so that the direction of pipe offset is parallel to the direction of the line connecting the two support wheels 22. At this time, drive cylinder 3 25 The output end of the cylinder shortens, which can pull the gear ring 24 to rotate. The gear 21 drives the support wheel 22 to rotate, making the support wheel 22 parallel to the support wheel 20. At this time, the output end of the drive cylinder 7 can push the placement platform 23 to slide and perform multiple checks. When the pipe is aligned, the output end of the drive cylinder 19 extends and pushes the gear ring 24 to rotate, making the support wheel 22 rotate 90 degrees, and the placement platform 23 can rotate again.

[0034] like Figures 5-7As shown, multiple adjustment slots 6 are provided, and the multiple adjustment slots 6 are arranged opposite each other. The multiple adjustment slots 6 are respectively opened on the side of the detection ring 5 near the second support wheel 22. In this embodiment, four adjustment slots 6 and four drive cylinders 7 are provided, which are aligned in pairs, and two adjacent adjustment slots 6 are symmetrical about the second support wheel 22. The output end of the drive cylinder 7 is configured to cooperate with the edge of the placement platform 23. The output end of the drive cylinder 7 on one side extends to push the placement platform 23 to move, and the output end of the drive cylinder 7 on the other side extends and shortens after contacting the placement platform 23 to clamp and stabilize the placement platform 23. The placement platform 23 is supported by the output ends of the four drive cylinders 7, so that the placement platform 23 remains stable when sliding. After the placement platform 23 finishes moving, the output end of the drive cylinder 7 shortens and leaves the interior of the detection ring 5.

[0035] like Figures 1-2 As shown, the placement table 23 is located on the side of the detection strip 11 near the feeding seat 4. The rotating table 17 can contact the placement table 23. After the pipe is placed on the placement table 23, the detection strip 11 rotates to contact the pipe and detect the position of the pipe.

[0036] In this embodiment, the pipe is placed on the placement platform 23. At this time, the rotation of multiple detection bars 11 causes the pressing rod to contact the pipe. The pressure sensor 13 detects the contact time and sequence to determine the direction and distance of pipe offset. Then, the rotating platform 17 drives the pipe to rotate, so that the offset direction of the pipe is parallel to the axis of the drive cylinder 7. At this time, the support wheel 22 rotates 90 degrees, making the support wheel 20 parallel to the support wheel 22. The output end of the drive cylinder 7 can push the placement platform 23 to slide on the support wheel 20 and the support wheel 22. At the same time, the position of the pipe is detected multiple times. When the pipe is aligned, the support wheel 22 rotates 90 degrees in the opposite direction. At this time, the placement platform 23 can rotate on the support wheel 20 and the support wheel 22.

[0037] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A vertical surfacing welding device for processing large-diameter pipe fittings, comprising a vertical rail (1), a welding support arm (2) slidably connected to the vertical rail (1), and a welding gun (3) connected to one end of the welding support arm (2), characterized in that, Also includes: A feeding seat (4) is provided below the welding gun (3). The detection ring (5) is fixedly connected to the feeding seat (4) and is configured as a circular ring. A position adjustment mechanism is provided on the feeding seat (4) and in the center of the detection ring (5). The pipe fitting is placed on the position adjustment mechanism and is used to adjust and straighten the position of the pipe fitting. A position detection mechanism is provided on the detection ring (5) and is used to detect the position of the pipe fitting. The position adjustment mechanism includes: Adjustment slots (6), a plurality of adjustment slots (6) are provided, and the plurality of adjustment slots (6) are formed on the detection ring (5); Drive cylinder 1 (7), multiple drive cylinder 1 (7) are provided, multiple drive cylinder 1 (7) are fixedly connected to the feeding seat (4), and the output end of drive cylinder 1 (7) passes through the adjustment slot (6). The position detection mechanism includes: Motor 1 (8), the motor 1 (8) is fixedly installed on the feeding seat (4), and a gear 1 (27) is fixedly connected to the output end of the motor 1 (8). Gear ring one (9), which is rotatably connected to the detection ring (5), and meshes with gear one (27); A sliding shaft (10) is provided in multiple ways. Multiple sliding shafts (10) are fixedly connected to the detection ring (5). The sliding shafts (10) are provided on the side of the toothed ring (9) near the position detection mechanism. The detection strip (11) is provided in multiple ways. Multiple detection strips (11) are rotatably connected to the toothed ring (9). The detection strip (11) is provided with a sliding groove (12). Each sliding groove (12) is slidably connected to the sliding shaft (10).

2. The vertical overlay welding equipment for processing large-diameter pipe fittings according to claim 1, characterized in that, The detection strip (11) is arc-shaped, and the section of the detection strip (11) located away from the toothed ring (9) in the slide groove (12) is stepped. A pressing rod (26) is rotatably connected to the stepped end of the detection strip (11), and a pressure sensor (13) is fixedly connected between the pressing rod (26) and the detection strip (11).

3. The vertical overlay welding equipment for processing large-diameter pipe fittings according to claim 2, characterized in that, A rubber sleeve (14) is fitted on the sliding shaft (10), the rubber sleeve (14) is rotatably connected to the sliding shaft (10), and the rubber sleeve (14) is in contact with the groove (12).

4. The vertical overlay welding equipment for processing large-diameter pipe fittings according to claim 3, characterized in that, The position adjustment mechanism further includes: A rotating assembly is disposed in the center of the detection ring (5) and is used to drive the pipe to rotate. An adjustment component is disposed in the detection ring (5) and is used to control whether the position of the pipe can be adjusted.

5. A vertical overlay welding equipment for processing large-diameter pipe fittings according to claim 4, characterized in that, The rotating assembly includes: Motor 2 (15), which is fixedly installed on the feeding seat (4); A drive shaft (16) is rotatably mounted on the feeding seat (4), and the drive shaft (16) is connected to the output end of the motor (15). Rotary table (17), which is slidably connected to the drive shaft (16); Lifting bushing (18), which is rotatably connected to one end of the rotating table (17) near the drive shaft (16); Drive cylinder two (19), multiple drive cylinder two (19) are provided, multiple drive cylinder two (19) are fixedly installed on the feeding seat (4), and the output end of the drive cylinder two (19) is fixedly connected to the lifting shaft sleeve (18).

6. A vertical overlay welding equipment for processing large-diameter pipe fittings according to claim 5, characterized in that, The adjustment component includes: Support wheel 1 (20), there are two support wheels 1 (20), the two support wheels 1 (20) are rotatably connected to the feeding seat (4), the support wheels 1 (20) are in the center of the detection ring (5), and the two support wheels 1 (20) are arranged opposite to each other; Gear 2 (21), there are two gears (21), the two gears (21) are rotatably connected to the feeding seat (4), and the two gears (21) are staggered with the two support wheels (20); Support wheel 2 (22), each of the gear 2 (21) is rotatably connected to the support wheel 2 (22); Placement platform (23), which is placed on the first support wheel (20) and the second support wheel (22), and the pipe fitting is placed on the placement platform (23); Gear ring two (24), the gear ring two (24) is rotatably mounted on the feeding seat (4), the gear ring two (24) meshes with two gear two (21), the gear two (21) is sleeved on the outside of the transmission shaft (16) and the drive cylinder two (19); Drive cylinder three (25) is rotatably connected to the feeding seat (4). Drive cylinder three (25) is located in the center of the detection ring (5). The output end of drive cylinder three (25) is rotatably connected to the toothed ring two (24).

7. A vertical overlay welding device for processing large-diameter pipe fittings according to claim 6, characterized in that, Multiple adjustment slots (6) are provided, and the multiple adjustment slots (6) are respectively arranged opposite to each other. The multiple adjustment slots (6) are respectively opened on the side of the detection ring (5) near the second support wheel (22).

8. A vertical overlay welding device for processing large-diameter pipe fittings according to claim 7, characterized in that, The placement platform (23) is located on the side of the detection bar (11) near the feeding seat (4), and the rotating platform (17) can contact the placement platform (23).

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